Machine for rolling sheet-glass.



G. A. SHIELDS. MACHINE FOB. ROLLING SHEET GLASS.

APPLICATION FILED MAY 28, 1913.

Patented Mar. 30, 1915.

WIT NES'SES: 75, "971/, :0 J

Application filed To all whom it may concern Be it known that l, Gsonee iii. Sn'inwe. a citizen of the United tates, residing at Columbus, in the county of Franklin end. State of Ohio, have invented certain new and useful improvements in ll lachines for Rolling Sheet-Glass, of Which the following is a specification.

The presen invention rel-rites to machines for rolling sheet The primary object of the invention is the simplification of" machines new in use for this 13 rpose, and to provide means or which the molten or plastic glass may he conrertctl into sheets and. moved by gravitix thus cliniincting waste to e consicleiahle extent, avoiding the danger of breaking or buckling of the glass sheets in the process of 1Tl1fll'l11- facture, anol facilitating the operation.

The invention consists essentially in certain novel combinations and erii'si'igenients of parts will he hereinafter more clearly set forth and pointed out in the appended claim.

In the accompanying drawings have illustrated one complete (:lllllOCllrliilll' oil the physical exeiiplificetion of the invention constructed according to the host mode have so far devised for the practical application of the principles thereof.

Figure'l is a side elevation of the nn1- chine, showing a portion of e glass tnnl; and a glass pot associated therewith. isa top plan View of Fig. l. Fi 3 an enlarged detail of the cutting kin e. Fi 4: is sectional detail of one of thehollow rollers. I

In the preferred embodiment of my in vention as illustratech it will be Xl'OllWi that the parts are compactly arranged. so that the molten may he kept at tlQSiXGd temperature. Thus the figure sh We the glass pot 1 located in close proximity to the glass tank 2 of the usual furnace. The plasticiglass O1-I1'l0lli6ll mass. may be c iveyed to the glass potthrough a trough or channel 3, the flow of the glass is con trolled by gate 4 Which may he lifted through the rocker arm 5 by means of the lever 6 which extends toward the front of the machine, and is located at a point convenient to an attendant. The glass pot supported in s frame '7 composed of lire brick or clay, ofother suitable refractory material, and the upper portion top 8 is provided with an open seat 9 to receive the W. Sllihali top or lid 10. In 2 it will be ohserveti that tire top i 15 n awav, to indicate I v that aihlitional glr pots may be employed, 1

out inasmuch as the carts would he. duplicated, it is thought not necessary to illustrate them here, The lid 10 is proviclecl with a top plate forming a flange ll by means of which it may he lifted when the proper tools :01 are applied thereto.

The glass not ts upon an open hot 311] 'lllfll lo: or oil econcl burner ii is pointed 1 the pot, the two burners serving i e t or maintain the heat.

The glass 1 formed with a wide, lint. nozzle or spout 13S, and across the nozzle is extended an adjustable gate 10 by n'ieans ot which the quantity of plastic glass emerging from the pot may be regulated and its ap- PlOXiilliltt. thickness vdetermined. in front of the gate 16 a burner 17 located and is adapted to impinge and radiate heat upon the flowing glass to prevent its freezing as it passes over the edge of the spout. The molten lass lion's over the oi the spent in a ll.. urine-(l approxiniatelv the gate 16. Below the edge of f spent a cutting device or knife 28 located. and in Figgi it will be seen that this knife is pii'oteifl to a side fram at 19 in close proximity to the glass Zeti a sheet. These rolling means include liollon rollers 21, siquportecl in a incl .iOllllQCl with hollow trunnions which Water may be passed from The Water level is inalithe movement of the as the sheet posses between I I l net: l. is rolls as 22. anti to a oiiil tins possibility, l provide each roller with a long brus "36 that relates in a res-en eiteci tn-ereon.

The course or the sheet 20 is indicated in .(lotteii lin in i, and alter it has passed between the compression rollers which give truly thick film or sheet, predeterii the desired accurate chiiiahness and smooth out any irregnl lies that may occur, it is subjected to a sui hle air hlaslt from ipo 28 through nozzles 29 which serve to reduce the lempei alnne of the glass. ll; will be understood that lhe gla is at a red heal, through out its length in dotted lir in Fig. 1, and the end oil. the sheet iii-s1 passes over an i1 cl ned support :50 which is an cndle belt or apron of asbestos ;a b around the rollers 3i, 32, and in position to receive the sheet from the rollers l, A hijirizontally disd (:0*1"6;\Q1ilwll; o3, gassing orcr the rolll. i and made of simila rc 'raolory material receives the shect oi glass from the inolinciil support, and a mi horimmtal eonreyer is indicated at $16 who Used as required. The movable iahles, or hciis are oprated from a motor ll by chains or 3. elis as indical'eil in dottedv lines The drum 5}" located. adapted lo hold a spool of wire or wire net- L i L .lrawn or led into the soi the edge oi the. spent a i5; is liriniy embedded in {he by the compression rollers, u 'lorn). che commori' "1 reinforced wire by means of a }'J' '\"l'l ll1@hl3l' indicated at 38, the desired and required intensity of heat can he accurately determined for the glass" hieh is fed from the Yank won this heat may be maintained hr mull ol' the burners and. 1%. After the required tempo store i (T wh ch .loore the spout is in presence of two w has been ascertained by experiment, a continuation 01 this condition, to produce hem results, will be simplified, and these heaters refine and anneal the molten glass Withoutthe use of additional means.

In operation it will he understood that the glass pot is filled from the tank 2 and the gate 4 closed. The molten glass is permitted to low over the edge of ti o spout in a sheet or film, which shoe; or film is compressed between the. rollers, and lhen, after being severed, is conveyed by the aprons 250, 36, to the proper lmishing n'raehiiacs and devices Harm thus fully described my invention, whatl claim as nes and desire to secure by Lei-tors Patent is The combination with a receptacle ha ring a broad spout, of means for regulating he thickness oi" the glass sheet flowing; therefrom, means for serci'ing a length from the sheet, means for compressing the severed length of glass, an inclined conveyor below the (.(Hl'lPlG-BSlIlg means, and means located helov the comma sing means for cooling the length of glass before it passes to the conveyer.

In tkclilillOily whereof I 'allix my signature glosses.

GEORGE A. SHTELDS..

Witnesses C. M. SHIGLEY, l. MCGLICK. 

